Pet food supplement

FIG. 1 is a perspective view of the pet food supplement of the new design;

FIG. 2 is another perspective view of the new design;

FIG. 3 is a top view of the new design;

FIG. 4 is a left view of the new design;

FIG. 5 is a front view of the new design;

FIG. 6 is a right view of the new design; and,

FIG. 7 is a bottom view of the new design.

Any parts shown in dashed lines in FIGS. 1-7 are shown for illustrative purposes only and form no part of the claimed design.